The shear catalog used here is created by [1]}. Their selection of
source galaxies is from SDSS DR7 image data in the r band,
which covers about 8423 square degrees of the SDSS LEGACY sky.
A sequence of Flags and model magnitude cuts with r \(\le 22.0\)  and
i \(\le 21.5\)  are applied to the image data.
The shapes of the galaxy images are obtained, and the final shape catalog
consists of the shape measurements with the resolution factor R
equal or greater than \(1/3\) . This shape catalog contains 39,625,244
galaxies with positions, shapes, and photo-\(z\)  information for individual
source galaxies.
